Main Discussion Area > Flintknapping

Is this some kind of chert?

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Tracker0721:
Looks like some kind of chert. Most gardening stores and landscaping places will have cherts mixed.

nclonghunter:
Looks like a good grade of rhyolite..... ::)

penderbender:
Cool thanks guys. Gonna have to keeps myself peeled for more. Any recommendations for temps/times to cook it? Cheers- Brendan

nclonghunter:
If it rhyolite then heating wont help...

Tree_Ninja:
Its not rhyolite.

  I have found some of the exact same stuff.  I call it chert. It is a crypto-crytalline Chalcedony. Not quite agate.

   I think heating will really help it.

 There are some mixed in with precious metals, copper gold etc.

 The greenish tint is most likely from copper/iron.

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